
//
//  XMGTabBar.m
//  01 baisi
//
//  Created by 檀志文 on 16/2/11.
//  Copyright © 2016年 ios檀志文. All rights reserved.
//

#import "XMGTabBar.h"

//自定义的tabbar
@interface XMGTabBar()

//发布按钮
@property(nonatomic,weak) UIButton *pubilishButton;

@end
@implementation XMGTabBar

-(instancetype) initWithFrame:(CGRect)frame{
    if (self=[super initWithFrame:frame]) {
        UIButton *publishButton=[UIButton buttonWithType:UIButtonTypeCustom];
        [publishButton setBackgroundImage:[UIImage imageNamed:@"tabBar_publish_icon"] forState:UIControlStateNormal];
        [publishButton setBackgroundImage:[UIImage imageNamed:@"tabBar_publish_click_icon"] forState:UIControlStateHighlighted];
        publishButton.size=publishButton.currentBackgroundImage.size;
        [self addSubview:publishButton];
        self.pubilishButton=publishButton;
    }
    return self;
}

- (void)layoutSubviews{
    [super layoutSubviews];
    CGFloat width=self.width;
    CGFloat height=self.height;
    
    //设置发布按钮的frame
    self.pubilishButton.center=CGPointMake(width*0.5, height*0.5);

    //    设置其他UITabBarbutton的frame
    
    CGFloat buttonY=0;
    CGFloat buttonW=width/5;
    CGFloat buttonH=height;
    NSInteger index=0;
    
    for (UIView *button in self.subviews) {
        if (![button isKindOfClass:[UIControl class]] || button==self.pubilishButton) continue;
//        计算按钮的x值
        CGFloat buttonX=buttonW*((index>1)?(index+1):index);
        button.frame=CGRectMake(buttonX, buttonY, buttonW, buttonH);
        
//        增加索引
        index++;
    }
}


@end
